NWT RESEARCH DATABASE

Principal Investigator: Lafleur, Peter M
Licensed Year(s): 2024 2023 2021 2019
Summary: This licence has been issued for the scientific research application No.5115. The overall goal of this project is to increase our knowledge of how tundra environments interact with the atmosphere and predict how changing tundra vegetation will affect future climates. Tundra ecosystems exchange energy, water and carbon gases with the atmosphere, which are important elements of the climate system...

Principal Investigator: Danby, Ryan K
Licensed Year(s): 2019 2018
Summary: The two main objectives are: to map changes in vegetation productivity on an annual basis across the Bathurst caribou herd’s range using satellite imagery obtained from NASA’s MODIS sensor (available since 2000) and analyze these data to identify where the most significant changes have occurred; and to collect and analyze data on the growth, establishment, and mortality of shrubs and trees over th...

Principal Investigator: Grogan, Paul
Licensed Year(s): 2018 2017 2016 2015 2014 2013 2012 2011 2010 2009 2008
Summary: The Arctic is undoubtedly experiencing several major perturbations including climate change, and resource development and extraction (e.g. mining and pipeline construction) that are very likely to substantially affect the structure and functioning of its ecosystems. As a terrestrial ecosystem ecologist, the long-term goal of this research over the next 15-20 years is to substantially advance the u...

Principal Investigator: Lafleur, Peter M
Licensed Year(s): 2018 2017 2016 2015 2014 2013 2012 2011 2010 2009 2008 2007 2007 2005 2004
Summary: The broad goal of this research is to increase our understanding of tundra carbon balance of terrestrial and aquatic ecosystems and predict into the future the impacts of climate warming on these systems. Since we are interested in all aspects of the tundra carbon balance a variety of methods are employed. These can be broken down into 4 basic categories: 1. Tundra-atmosphere fluxes - the ex...

Principal Investigator: Lewkowicz, Antoni G
Licensed Year(s): 2018 2017 2016
Summary: The goal of this project is to look at how permafrost is changing following forest fire over a range of environmental conditions, with the purpose of improving how change is modeled in the future. The fires of 2014 in the southwestern Northwest Territories (NWT) provide an opportunity to examine how discontinuous permafrost responds to disturbances. This work is being carried out in collaboration ...

Principal Investigator: Danby, Ryan K
Licensed Year(s): 2016
Summary: Objectives of this research project are to: 1) analyze Landsat satellite images to understand regional vegetation change over the past 30 years; 2) determine the timing of tree establishment as well as the climate influence on tree growth across the forest tundra transition zone over the past 300 years; and, 3. measure spruce seedling growth across the forest-tundra ecotone in relation to varia...

Principal Investigator: Williams, Mathew
Licensed Year(s): 2014 2013 2012
Summary: The aim of the proposed project is to develop, parameterize and evaluate a detailed process-based model of vegetation soil- permafrost interactions using data collected through directed field campaigns in the discontinuous and sporadic permafrost zones of western Canada. The research team will (i) elucidate the role of plant biodiversity in controlling permafrost status in contrasting ecosystems w...

Principal Investigator: Grieve, Sheryl
Licensed Year(s): 2010 2009 2008 2007
Summary: This project is part of a larger IPY study, Climate Change Impacts on Canadian Arctic Tundra Ecosystems (CiCAT), looking at the effect of climate change on arctic tundra ecosystems. For this project, Metis traditional knowledge on vegetation and terrain changes in the North Slave region will be collected. The goal of this study is to connect and meld scientific studies with knowledge from people ...

Principal Investigator: Karunaratne, Kumari C
Licensed Year(s): 2005 2004 2003
Summary: This project will examine the effect of Great Slave Lake on air and surface temperatures in peatlands near Yellowknife over a period of three years. Air and surface temperatures are components of the climate/permafrost relation, and are used in numerica...

Principal Investigator: Clark, Karin
Licensed Year(s): 2003
Summary: The objectives of the research are to get a better understanding of how caribou foraged plant species might be responding to climate. This information may be used to make predictions of how plants might adapt to a warmer climate and in turn how this mig...